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3 moles of an ideal gas is heated and co...

3 moles of an ideal gas is heated and compressed simultaneously from 300 K, 1 atm to 400 K, P atm. If change in entropy of gas is `-3.3 cal//K` then calculate value of P(in atm).
`C_(P)=(7R)/(2),R=2 cal//"mole"-K`
[In 2=0.7, In 3=1.1, In 5=1.6]

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